Korean outlet MTN reports that the game, known as Project H/Skyline internally, has been canceled following a round of layoffs in October last year. That's not the only affected game, as another title codenamed Project Pantera, based on NCSoft's Lineage franchise, has also been canceled.

Sony has reportedly canceled a live service massively multiplayer game (MMO) set in Horizon’s world. In a partnership with NCSOFT, a Korean publisher, Sony’s MMO under the code names Project H and Project Skyline,